561500532160 has 112 divisors (see below), whose sum is σ = 1353202601184. Its totient is φ = 221898866688.

The previous prime is 561500532157. The next prime is 561500532211. The reversal of 561500532160 is 61235005165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18205072 + ... + 18235888.

It is an arithmetic number, because the mean of its divisors is an integer number (12082166082).

Almost surely, 2^561500532160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561500532160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676601300592).

561500532160 is an abundant number, since it is smaller than the sum of its proper divisors (791702069024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561500532160 is a wasteful number, since it uses less digits than its factorization.

561500532160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31518 (or 31508 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 561500532160 in words is "five hundred sixty-one billion, five hundred million, five hundred thirty-two thousand, one hundred sixty".